One might also consider the actual SGPLOT code involved. How much of that 4.5 Gb dataset is actually used by Sgplot? What type of plot/plots are involved? Perhaps a different plot approach would reduce memory need.
One might also consider the actual SGPLOT code involved. How much of that 4.5 Gb dataset is actually used by Sgplot? What type of plot/plots are involved? Perhaps a different plot approach would reduce memory need.